A pipe 2 feet in diameter will allow four times more fluid to pass through it than a pipe 1 foot in diameter.
20
An iceberg contains more heat than a lit match.
73
On average, 100 people choke to death on ballpoint pens every year.
72
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
94
Q-Tip Cotton Swabs were originally called Baby Gays.
55
The key to happiness is spending your money on experiences rather than possessions, according to studies.
21
Water is actually naturally blue.
48
Passengers on the Beijing subway can pay with plastic bottles.
29